The Jackhammer Massacre
The Jackhammer Massacre is a 2004 horror film written and directed by Joe Castro, and cowritten by Daniel Benton.
When Jacks sister Tori and her girlfriend arrive, Jack having called them earlier to ask for money, Jack locks Tori in a storage room, and murders her girlfriend. After killing his boss, who had stopped by to tell him that the building has been sold, Jack has a series of hallucinations, and passes out on the street. In the morning, Jack wakes up, and murders the realtor and buyer his boss was going to meet with, as the cleaning crew hired by the realtor arrives. Jack kills two members of the cleaning crew, incapacitates one with an injection of drugs, and chases the final member of the group, Sam, through the warehouse, and onto the roof.When the extension cord of the jackhammer becomes unplugged, Jack resorts to trying to strangle Sam to death, but is stopped by the escaped Tori, who tries to reason with him. When talking to Jack fails, Tori knocks him off the roof with the detached bit of the discarded jackhammer. As Jack lies bleeding in the street, the hallucinatory Mike appears, and yells at him to get up. When Sam and Tori exit the warehouse moments later, they both scream when they notice Jack is gone. ........
Source: Wikipedia
